Typo.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21367 b5f69653-2bf5-0310-8201-b0dafb8e1405
Less haste more speed!

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21368 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2410 This still needs increasing for parallel_3

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21369 b5f69653-2bf5-0310-8201-b0dafb8e1405